Dec 18 07:23:59.309 INFO checking H2CO3/sudoku against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 07:23:59.309 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/H2CO3/sudoku:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 07:23:59.562 INFO [stdout] dfde3982406e492058d84d8637eeb1319520e47fc8c86c05d48edbf329f7bfbe
Dec 18 07:23:59.564 INFO running `"docker" "start" "-a" "dfde3982406e492058d84d8637eeb1319520e47fc8c86c05d48edbf329f7bfbe"`
Dec 18 07:24:00.484 INFO [stderr]     Checking sudoku v0.1.0 (/opt/crater/workdir)
Dec 18 07:24:00.828 INFO [stderr] warning: unused variable: `s2`
Dec 18 07:24:00.828 INFO [stderr]    --> src/main.rs:113:9
Dec 18 07:24:00.828 INFO [stderr]     |
Dec 18 07:24:00.828 INFO [stderr] 113 |     let s2 = Grid {
Dec 18 07:24:00.828 INFO [stderr]     |         ^^ help: consider using `_s2` instead
Dec 18 07:24:00.828 INFO [stderr]     |
Dec 18 07:24:00.828 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 07:24:00.828 INFO [stderr] 
Dec 18 07:24:00.896 INFO [stderr] warning: unused variable: `s2`
Dec 18 07:24:00.896 INFO [stderr]    --> src/main.rs:113:9
Dec 18 07:24:00.896 INFO [stderr]     |
Dec 18 07:24:00.896 INFO [stderr] 113 |     let s2 = Grid {
Dec 18 07:24:00.896 INFO [stderr]     |         ^^ help: consider using `_s2` instead
Dec 18 07:24:00.896 INFO [stderr]     |
Dec 18 07:24:00.896 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 07:24:00.896 INFO [stderr] 
Dec 18 07:24:00.971 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
Dec 18 07:24:01.684 INFO running `"docker" "inspect" "dfde3982406e492058d84d8637eeb1319520e47fc8c86c05d48edbf329f7bfbe"`
Dec 18 07:24:01.962 INFO running `"docker" "rm" "-f" "dfde3982406e492058d84d8637eeb1319520e47fc8c86c05d48edbf329f7bfbe"`
Dec 18 07:24:02.205 INFO [stdout] dfde3982406e492058d84d8637eeb1319520e47fc8c86c05d48edbf329f7bfbe